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A constellation of remote sensing small satellite system has been developedfor infrastructure monitoring in India by using SAR Payload. The LEOconstellation of the small satellites is designed in a way, which can cover theentire footprint of India. Since India lies a little above the equatorialregion, the orbital parameters are adjusted in a way that inclination of 36degrees and RAAN varies from 70-130 degrees at a height of 600 km has beenconsidered. A total number of 4 orbital planes are designed in which eachorbital plane consisting 3 small satellites with 120-degrees true anomalyseparation. Each satellite is capable of taking multiple look images with theminimum resolution of 1 meter per pixel and swath width of 10 km approx. Themultiple look images captured by the SAR payload help in continuousinfrastructure monitoring of our interested footprint area in India. Each smallsatellite is equipped with a communication payload that uses X-band and VHFantenna, whereas the TT&C will use a high data-rate S-band transmitter. Thepaper presents only a coverage metrics analysis method of our designedconstellation for our India footprint by considering the important metrics likerevisit time, response time, and coverage efficiency. The result shows that theaverage revisits time for our constellation ranges from about 15- 35 min whichis less than an hour and the average response time for this iterativelydesigned constellation ranges from about 25-120 min along with hundred percentcoverage efficiency most of the time. Finally, it was concluded that eachsatellite has 70kg of total mass and costs around $ 0.75M to develop.

Constellation Design of Remote Sensing Small Satellite for Infrastructure Monitoring in India